Eun Ji and Seung Ho, Sung Shik, and Joo Ran move into a neighborhood at similar times. Eun Ji is lonely because of her husband's frequent late-nights and Sung Shik takes care of the house while his wife works.
One day, Sung Shik goes over to Eun Ji's house to return a package but end up drinking wine with her. Sung Shik drunkenly kisses Eun Ji and the two spend a night in each others' arms. They continue to meet secretly like that and one day lie to their husband and wife and leave on a trip together. However, Sung Shik returns home because his pipes have burst and Eun Ji witnesses her husband and the woman next door, Joo Ran in bed together.
A few months later, Sung Shik, Eun Ji, Seung Ho, and Joo Ran run into each other but with different partners...
(Source: Hancinema)